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QA/QC During Project Commissioning: Final Checks That Matter

Project commissioning is the final and most critical phase of any construction, oil & gas, power plant, or industrial project. At this stage, Quality Assurance (QA), Quality Control (QC), and essential NDT inspections ensure that the project is safe, compliant, and operationally ready.

Even a small lapse in QA/QC or inspection during the construction phase can become a major failure risk during commissioning.

The Role of QA/QC During Commissioning

During commissioning, QA/QC plays a crucial role in:

• Verifying design compliance and workmanship quality
• Ensuring codes and standards are being followed
• Confirming that critical welds and components have required NDT inspections
• Providing final quality approval before client handover

This phase determines the final safety and quality status of the project.

Why QA/QC with NDT Support Is Important

Strong QA/QC combined with proper NDT support ensures:

• Compliance with international standards (ISO, ASME, API, ASTM)
• Early detection of hidden defects in welds and pressure components
• Long-term reliability of equipment and systems
• Reduced risk of rework, breakdowns, and operational delays

Proper coordination between QA/QC and NDT teams is mandatory during commissioning.

Key QA/QC Activities During Commissioning (with NDT)

1. Documentation Review & NDT Records Verification

QA/QC engineers ensure that:

• All approved drawings and latest revisions are available
• Inspection & Test Plans (ITPs) are properly followed
• NDT reports, Material Test Certificates (MTCs), and calibration records are complete

Incomplete QA/QC or NDT documentation is a common cause of commissioning delays.

2. Mechanical Completion & Punch List Control

QA/QC ensures:

• All systems are mechanically complete
• Critical punch points, especially weld-related, are closed 
• Repairs are followed by approved NDT re-testing

Final punch list closure is mandatory before commissioning approval.

3. Inspection, Testing & NDT Verification

QA/QC ensures:

• Visual inspections (VT) are properly conducted
• Required NDT methods are applied, such as:
• UT (Ultrasonic Testing)
• RT (Radiographic Testing)
• MT (Magnetic Particle Testing)
• PT (Dye Penetrant Testing)
• Results meet acceptance criteria

Defects that do not meet standards must be repaired and re-tested with QA/QC approval.

4. Safety & Compliance Checks

During commissioning, QA/QC ensures:

• Pressure systems and safety-critical welds are NDT cleared
• Equipment guards, interlocks, and alarms are functional
• Statutory and third-party inspection requirements are completed

Safety-related QA/QC inspections cannot be compromised.

5. Final Quality Acceptance & Handover

QA/QC’s final responsibilities include:

• Issuing final inspection reports and NDT summaries
• Verifying as-built drawings and quality dossiers
• Supporting client and consultant final acceptance

Strong QA/QC ensures professional credibility and project confidence.

Common QA/QC & NDT Challenges During Commissioning

• Incomplete QA/QC or NDT documentation
• Re-testing delays after repairs
• Inspection compromises due to time pressure
• Coordination gaps between QA/QC, NDT, and commissioning teams

Experienced QA/QC professionals handle these challenges through planning and disciplined execution.

Conclusion

QA/QC during project commissioning is not just a formality — it is the final checkpoint for project quality and safety. Proper QA/QC supported by essential NDT inspections ensures that the project is safe, compliant, and ready for long-term operation.

Strong QA/QC today ensures failure-free operation tomorrow.

📞 QA/QC & NDT Training – Join Make World Institute of Petroleum

If you want to build a career as a QA/QC Engineer or NDT Professional, industry-oriented training is essential.

Make World Institute of Petroleum offers:

• QA/QC Engineering Training (Beginner to Advanced)
• NDT Training (UT, RT, MT, PT, VT – Theory & Practical)
• Training by experienced industry professionals
• Practical, site-based knowledge
• Career guidance for India and overseas projects

Our courses are designed to meet the latest industry standards for construction, oil & gas, power plant, and industrial projects.

📍 Admission & Enquiry Details

 Make World Institute of Petroleum
Address: HIG 04, B Sector, Sonagiri, opposite to Piplani Petrol Pump, Bhopal, M.P., 4620244
📞 Call / WhatsApp: 9424347045, 0755-493-3347, 9424480384
📧 Email: info@makeworld.in
🌐 Website: www.makeworld.in

👉 Contact us today to know about upcoming batches, course duration, fees, and career guidance.